CN103430619B - Base station sub-system, RBS parts and TMA parts and its method for synchronous RBS parts and TMA parts - Google Patents
Base station sub-system, RBS parts and TMA parts and its method for synchronous RBS parts and TMA parts Download PDFInfo
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- CN103430619B CN103430619B CN201080070652.2A CN201080070652A CN103430619B CN 103430619 B CN103430619 B CN 103430619B CN 201080070652 A CN201080070652 A CN 201080070652A CN 103430619 B CN103430619 B CN 103430619B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
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Abstract
Base station sub-system (1000), TMA parts (100) and RBS parts (150) and correlation method there is provided the communication system using TDD, RBS parts and TMA parts (100) for synchronous base station sub-system (1000).RBS parts (150) include RBS modems (160), and RBS modems (160), which are suitable for generation, to be included the switching signal of switch command word and be suitable for that switching signal also is sent into TMA modems (110).The switch command word that TMA modems (110) are suitable for demodulating switching signal and being suitable for by switch command word with storage in a register compares.When any switch command word matching in register (111) has demodulated the switch command word of switching signal, TMA modems (110) are configured to：The control signal of the switch for controlling TMA parts is generated, so as to synchronous RBS parts (150) and TMA parts.
Description
Technical field
In general, the present invention relates to the synchronization in communication system, and more specifically to synchronous communication system
The radio base station portion of base station sub-system installs amplifier section with tower.
Background technology
Tower is installed amplifier (TMA) and is used together with radio base station (RBS), and they are together in the upper of this specification
Hereinafter form base station sub-system.TMA includes the low noise actually installed close to one or more antennas of base station sub-system
Amplifier (LNA).TMA reduces base transceiver station noise figure, and therefore improves its overall sensitive degree, in other words, moves
Dynamic mast can receive weak signal.
The TMA used in the system based on FDD (FDD) is commonly equipped with duplexer, and it is internally separately transmitted
Signal (TX) and reception (RX) signal.Duplexer provides decay enough to protect LNA from being sent to receive.
When in the system based on time division duplex (TDD) use TMA when, the commonly provided circulator with isolate RX path with
Transmitting path.This is necessary, because the communication system based on TDD is for downlink (corresponding to transmission) and up-link
(correspond to and receive) uses identical frequency.However, circulator can not provide enough due to the leakage in circulator to LNA in itself
Protection.Leakage in circulator refers to some Power leakages in transmitting path into RX path.This leakage can be destroyed
LNA in RX path.In order to protect LNA, switch or limiter can be placed between circulator and LNA, to pass
Send during the cycle and protect LNA in the case of having high reveal in circulator.
However, this solution is associated with some defects.If protecting LNA using limiter, ring gain will increase
Plus export with interior ripple.If using switch, switch needs the switch between downlink transmission and up-link transmission
It is synchronous.In order to synchro switch and RBS, additional signal cable can be used.However, it is expensive, and it adds fortune
Seek the operational overhead (OPEX) of business.
This solution disclosed in the international pct application WO 2001058181A2 announced needs to change current
RBS platforms, and it will also increase cost.This solution another problem is that the reliability of blue tooth interface.In RBS and indigo plant
The frequency band that tooth interface is used it is close to each other and/or interference in the case of may have any problem.
The content of the invention
The purpose of example embodiment of the present invention is to solve at least some problems outlined above.Specifically, it is therefore an objective to carry
Method and base station sub-system for partly installing amplifier (TMA) part with tower for synchronization of radio base station (RBS).
According to the one side of example embodiment, issue noted above is by the communication system using time division duplex (TDD)
The RBS for being used for synchronous base station sub-system parts and the base station sub-systems of the TMA parts of base station sub-system solve.RBS is wrapped part
RBS modems are included, the RBS modems, which are suitable for generation, to be included the switching signal of switch command word and be suitable for
Switching signal is also sent to the TMA modems of TMA parts.The TMA modems are suitable for demodulating switching signal
And it is suitable for switch command word by switching signal has been demodulated compared with the switch command word in the register for being stored in TMA parts
Compared with.When any switch command word matching in register has demodulated the switch command word of switching signal, TMA modems are matched somebody with somebody
Being set to generation is used to control the control signal of the switch of TMA parts so as to the RBS parts and TMA parts of synchronous base station sub-system.
According to the another aspect of example embodiment, issue noted above is by the TMA portions for synchronous base station sub-system
The TMA parts with the base station sub-system of RBS parts are divided to solve.TMA parts include TMA modems, TMA modems
It is suitable for receiving switching signal from the RBS modems in RBS parts, the switching signal includes switch command word.It is described
TMA modems are suitable for demodulating switching signal and are suitable for switch command word by switching signal has been demodulated with being stored in
Switch command word in the register of TMA parts compares.When any switch command word matching in register has solved tune switch
During the switch command word of signal, TMA modems be configured to generation be used for control TMA parts switch control signal so as to
RBS parts and the TMA parts of synchronous base station sub-system.
According to the another aspect of example embodiment, issue noted above is by the TMA portions for synchronous base station sub-system
The RBS parts with the base station sub-system of RBS parts are divided to solve.RBS parts include RBS modems, RBS modems
The TMA that being suitable for generation includes the switching signal of switch command word and be suitable for that switching signal also is sent into TMA parts is adjusted
Modulator-demodulator.
According to the another aspect of example embodiment, issue noted above is by the RBS portions for synchronous base station sub-system
Divide with the method in the base station sub-system using TDD of the TMA parts of base station sub-system to solve.Methods described bag
Include：Switching signal is generated in the RBS modems of RBS parts, the switching signal includes switch command word, and will be described
Switching signal is sent to the TMA modems of TMA parts.Methods described also includes：TMA modems in TMA parts
Middle reception switching signal simultaneously demodulates the switching signal.Methods described also includes：The switch command of switching signal is demodulated
Word and the switch command word being stored in the register of TMA parts, and when any switch command word in register is matched
When demodulating the switch command word of switching signal, the control letter of the switch for controlling TMA parts is generated in TMA modems
Number so as to synchronous base station sub-system RBS part and TMA parts.
According to the another aspect of example embodiment, issue noted above is by the side in the TMA parts of base station sub-system
Method is solved.Methods described includes：Switching signal is received from the RBS modems in RBS parts, the switching signal includes
Switch command word, and demodulate the switching signal.Methods described also includes：Demodulated the switch command word of switching signal with
The switch command word in the register of TMA parts is stored in, and when any switch command word matching in register has been demodulated
During the switch command word of switching signal, generated in TMA modems the control signal of switch for controlling TMA parts with
Just the RBS parts and TMA parts of synchronous base station sub-system.
According to the another aspect of example embodiment, issue noted above is by the TMA portions for synchronous base station sub-system
Divide with the method in the RBS parts of the base station sub-system of RBS parts to solve.Methods described includes：RBS in RBS parts
Generation includes the switching signal of switch command word in modem, and the switching signal also is sent into TMA parts
TMA modems.
One advantage of embodiment is, compared with envelope detected, and aerial interference is synchronous with TMA parts to RBS parts
Do not influence.TMA modems can use low hardware material cost to be made.
The additional advantage of embodiment is can effectively to protect the low-noise amplifier in TMA parts by switch to prevent not
The signal stream needed and interference.
The another advantage of embodiment is which TDD RBS part they with using unrelated.Single TMA parts can
Be connected to RBS parts, and accurately and automatically with RBS Partial synchronizations.The switch of TMA parts is by generated in RBS parts
Switching signal is controlled.Can be with TDD-TLE RBS parts, TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) using TDD TMA parts
RBS partly and using TDD other RBS parts works together.
The other purposes and feature of example embodiment will be apparent from from combination accompanying drawing detailed further below, but pay close attention to following thing
It is real：Drawings described below is merely illustrative, and can carry out in the specific embodiment of institute's illustration various modifications and changes.Should also
It is understood that accompanying drawing is not drawn necessarily to scale, and unless otherwise noted, otherwise they are merely intended to conceptually illustration and retouched herein
The structure and process stated.
Brief description of the drawings
Fig. 1 is the frame for the base station sub-system that illustration includes TMA parts and RBS parts according to the example embodiment of the present invention
Figure.
Fig. 2 is the illustration of the timing relationship relative to TMA and RBS switching signals.
Fig. 3 is the block diagram of schematic illustration amplifier unit.
Fig. 4 be illustration according to the example embodiment of the present invention be used for synchronization RBS partly with the base station sub-system of TMA parts
Example methodology flow chart.
Fig. 5 is that illustration is used for the base station sub-system of synchronization RBS parts and TMA parts according to the example embodiment of the present invention
The flow chart of example methodology in TMA parts.
Fig. 6 is that illustration is used for the base station sub-system of synchronization RBS parts and TMA parts according to the example embodiment of the present invention
The flow chart of example methodology in RBS parts.
Fig. 7 is the block diagram that illustration illustrates RBS modems.
Fig. 8 is the block diagram that illustration illustrates TMA modems.
Fig. 9 is the flow chart for synchronous TMA parts and the exemplary synchronization process of RBS parts.
Figure 10 is the flow chart of the wherein illustration failure situations that timing signal is lost.
Figure 11 illustrates the demonstration for the switch command for being adapted for being used using the system based on TDD LTE of radio frame
Using.
Embodiment
There is provided the base station sub-system of the communication system using time division duplex (TDD), the nothing of base station sub-system for brief description
Amplifier (TMA) part is partly installed in line electricity base station (RBS) with tower, and it is used for synchronous RBS parts and TMA parts.There is provided base
Method in method, RBS parts and the TMA parts stood in subsystem, for synchronous RBS parts and TMA parts.
The illustrative embodiments of this base station sub-system are described referring now to Fig. 1.As indicated, Fig. 1 is illustrated using TDD's
Base station sub-system 1000, it is used for TMA part of the RBS parts 150 with base station sub-system 1000 of synchronous base station sub-system 1000
100。
RBS parts 150 include RBS modems 160, and RBS modems 160, which are suitable for generation, includes switch command
The switching signal of word.RBS modems 160 are also adapted to switching signal being sent to the TMA modulation /demodulation of TMA parts 100
Device 110.
TMA modems 110 are suitable for demodulating switching signal and are suitable for switch command by switching signal has been demodulated
Word is compared with the switch command word in the register 111 for being stored in TMA parts.
When any switch command word matching in register 111 has demodulated the switch command word of switching signal, TMA modulation
Demodulator 110 is configured to：The control signal of switch 134 for controlling TMA parts 100 is generated so as to synchronous base station sub-system
1000 RBS parts 150 and TMA parts 100.
This has multiple advantages.Compared with envelope detected, aerial interference to RBS parts and TMA parts synchronously do not have
Influence.TMA modems 110 can use low hardware material cost to be made.
Fig. 1 also illustrates switch 134 and is arranged in TMA parts 100 between antenna 120 and low-noise amplifier LNA 135
RX path 132 in.
Arranged by this, LNA 135 can be effectively protected to prevent unwanted signal stream and interference by switch 134.
In addition, Fig. 1, which illustrates RBS parts 150, includes timing unit 181, timing unit 181 is arranged to control RBS modulation
Demodulator 160 simultaneously controls amplifier unit 180 in RBS parts 150.
Timing unit 181 is arranged to：The power amplifier in amplifier unit 180 is activated, while control RBS modulation
Demodulator 160 to TMA modems 110 to send switching signal, so that controlling switch 134 causes switch 134 by antenna 120
It is connected with loading resistor 136.
Timing unit 181 is also configured to：The power amplifier in amplifier unit 180 is deactivated, while control RBS
Modem 160 to TMA modems 110 to send switching signal, so that controlling switch 134 causes switch 134 by day
Line 120 is connected with LNA 135.
This is in Fig. 1 by exemplified below：Timing unit 181 sends signal to RBS modems 160 and amplification
Both device units 180.In Fig. 1, timing unit 181 can be by activating power amplifier (PA) " PA is opened " while control
RBS modems 160 control amplifier unit 180 to send switching signal to TMA modems 110.When activation work(
During rate amplifier, RBS sends data towards mobile station or user equipment (UE) in the downlink.In this case, 134 are switched
By protection LNA 135 to prevent any leakage from circulator 133.This is inputted end by switch and connected from circulator 133
Carried out to loading resistor 136.
Equally, when it is assumed that base station sub-system receives data from mobile station or UE in the uplink, it should deactivate work(
Rate amplifier, because not sending data in the downlink.Timing unit 181 can be by deactivating power amplifier
(PA) " PA passes " is while control RBS modems 160 are controlled with sending switching signal to TMA modems 110
Amplifier unit 180.When deactivating power amplifier, the RBS parts of base station sub-system receive data in the uplink, and
And in order to receive data in RBS parts 150, antenna 120 must be connected to LNA 135 by switch 34.It will point out, circulator
133 are arranged in the path between antenna 120 and switch 134 and LNA 135.When base station sub-system is in extended receiver,
Antenna 120 is connected to RX path 132 by circulator 133.Thus, when base station sub-system is just received in the uplink, open
Pass 134 is said to be is connected to LNA 135 by antenna 120.Equally, antenna 120 is connected with resistor 136 when switch 134 is said to be
When connecing, switch 134 is inputted end and is connected to resistor 136 from circulator 133.Due to caused by circulator from transmitting path
131 can be absorbed to the leakage signal in RX path 132 by resistor 136, thus protect LNA 135.
Fig. 1 also illustrates the TMA parts and RBS parts being coupled via biasing T-network 141 and 142.Such as in the figure
Seen in, TMA modems and RBS modems can also be coupled via identical biasing T-network.
In the illustration illustration of possible TMA parts, TMA parts include transmitting path 131 and RX path 132.TMA parts
Also include in this example：Circulator 133, it is suitable for separating transmitting path with RX path；And it is suitable for or incites somebody to action
Transmitting path is coupled to antenna 120, or RX path is coupled into the antenna.
RBS modems 160 include：Processor 162, it is suitable for:Switched being sent towards TMA modems 110
The switching signal time delay is offset before signal, to compensate from the power amplifier in amplifier unit 180 to TMA
Propagation delay in the transmission of the output port of part 100 is with switching signal from RBS modems 160 to TMA modulation /demodulation
The time difference between propagation delay in the transmission of device 110.
The output port of TMA parts 100 is not shown in Fig. 1, but the output port be located at TMA parts 100 in, for example by means of
Short feeding cable is helped to be connected to antenna 120 and TMA parts 100.TMA parts 100 may be present is coupled to the multiple defeated of antenna 120
Exit port.It although Fig. 1 is illustration, but still can be seen, modulated from amplifier unit 180 to the path of antenna 120 different from RBS
Path between demodulator 160 and TMA modems 100.Because path is different, therefore is along different paths in transmission
Different propagation delays., can accurate synchronization RBS modems 160 and TMA modems by compensating the difference of propagation delay.
Time migration can be calculated according to following equation：
In this equation,It is propagation delay of the downlink switch command in RBS parts 150, the propagation
Delay includes FPGA (field programmable gate array) delays, DAC (digital analog converter) delays, the antenna port (bag from DAC to RBS
Containing biasing T 142) RF (radio frequency) associated component delay.Antenna port is not shown in Fig. 1.However, it can be located at RBS parts
Biasing T-network 142 end.TfeederIt is feeder line delay, it is unrelated that this can see from equation.Therefore, it need not compensate
The length of feeder line.Feeder line cable is the cable between RBS parts 150 and TMA parts 100, more specifically, is RBS parts
Bias the cable between T 142 and the biasing T 141 of TMA parts.In addition,It is that downlink switching signal exists
The propagation delay of TMA parts, the propagation delay comprising biasing T-network, bandpass filter (BPF) and ADC (analog-digital converter) with
And FPGA processing delays.T PA It is the delay at the power amplifier in RBS parts in amplifying unit, andT FU It is in RBS portions
The filter cell delay divided.BPF in the filter cell of RBS parts is amplifier unit 180.
Different delays is also illustrated in Fig. 2.These parameters can be measured in the production phase, and be stored at RBS parts 150
In database in database and TMA parts 100.
In one example, modulated in RBS modems 160 by using frequency shift keying fsk or on-off keying OOK
Switching signal.
Fig. 3 is the block diagram of schematic illustration amplifier unit 180.Fig. 3 amplifying unit is identical with Fig. 1 amplifying unit,
Therefore same unit is represented using same reference numerals.Timing unit and biasing T-network for RBS parts is same.It will note,
The amplifier unit 180 of illustration is simplified in Fig. 3.It may include other components in amplifier unit.For example, in circulator
Switch can be arranged between 384 and LNA 383.Furthermore it is possible to arrange negative at switch with TMA parts identical mode in Fig. 1
Carry resistor.That is, amplifying unit 180 can include the switch for being similar to switch 134 being placed between circulator 384 and LNA 383
With the loading resistor similar to loading resistor 136.
Amplifying unit 180 also includes power amplifier (PA) 381.When RBS parts 150 are just transmitted in the downlink,
Activate PA 381.Fig. 3 also illustrates the amplifying unit 180 including wave filter 382.
Referring again to Fig. 1 and base station sub-system 1000, TMA modems 110 are configured to control according to illustrative embodiments
Trap method and delay timer.In this embodiment, TMA modems are configured to work as any in register 111
When the matching of switch command word has demodulated the switch command word of switching signal, update trap method and replacement delays timer.
This is also referred to as normal manipulation mode, wherein when in the switch command word match registers 111 that switching signal includes
Switch command word when, TMA modems 110 by from RBS parts 150 RBS modems 160 receive switch
The switch 134 of signal control TMA parts 100.
Situation when the switch command word in register 111 all mismatches the switch command word for having demodulated switching signal can
Can occur.If this situation should occur, TMA modems 110 are configured to by trap method controlling switch 134
And startup delays timer.
This is also referred to as delaying pattern.In this mode, TMA modems 110 may be believed independent of switch is received
Number switch command word included, because the switch command word in register 111 all mismatches and demodulated switching signal
Switch command word.TMA modems are then using trap method so as to controlling switch 134.Trap method is modulated by TMA
Demodulator safeguards that this will illustrate in further detail below.However, trap method will drift about so that its only responsible a certain period,
It has drifted about too many and has been not used to controlling switch 134 afterwards.In order to track responsible trap method controlling switch when
Section, startup delays timer.Pattern is delayed below with reference to Figure 10 more detailed descriptions.
TMA modems 110 are configured to by trap method controlling switch 134, or are arrived until delaying timer
Untill phase, wherein TMA modems 110 are configured to send to RBS modems 160 and alerted, or until receiving bag
Include in match registers 111 untill the switching signal of the switch command word of any switch command word, wherein TMA modems
110, which are configured to generation, is used for the control signal for controlling the switch 134 of TMA parts so as to the RBS portions of synchronous base station sub-system 1000
Points 150 with TMA parts 100, and update trap method and reset and delay timer.
In the overdue example of timer is delayed, trap method may drift about too many and uncontrollable TMA parts
100 switch 134.Then, TMA modems send to RBS modems 160 and alerted so that RBS modems can
Transmission includes the switching signal of switch command word.In this way, RBS parts 150 and TMA parts 100 can be subsynchronous again.
The example of the switching signal of the switch command word of any switch command word in receiving including match registers 111
In, TMA modems can again depend on RBS modems, and the RBS parts 150 of base station sub-system 1000 and TMA
Part 100 can be synchronous.Then, TMA modems 110, which update trap method and reset, delays timer.TMA modulation /demodulation
Device 110 will be operated in normal mode again.
As mentioned before, it is used for synchronization RBS parts and TMA portions figure 1 illustrates the communication system using TDD
The illustrative embodiments of the TMA parts for the base station sub-system divided, and will be described now referring again to Fig. 1.
TMA parts 100 include being suitable for the TMA that switching signal is received from the RBS modems 160 in RBS parts 150
Modem 110, the switching signal includes switch command word.TMA modems 110 are also adapted to solution tune switch letter
Number, and be suitable for the switch command word for having demodulated switching signal and the switch command being stored in the register 111 of TMA parts
Word compares.When any switch command word matching has demodulated the switch command word of switching signal in register 111, TMA modulation
Demodulator 110, which is configured to generation, is used for the control signal for controlling the switch 134 of TMA parts so as to synchronous base station sub-system 1000
RBS parts 150 and TMA parts 100.
Fig. 1 also illustrates switch 134 and is arranged in RX path 132 of the TMA parts 100 between antenna 120 and LNA 135
In.
This has the following advantages that：Can be separately manufactured and be connected to existing RBS parts in TMA parts.Due to switch 134 completely by
Generated in RBS parts switch command control, therefore, TMA parts 100 can with TD-SCDMA (Time Division-Synchronous Code Division Multiple Access),
TDD-LTE (TDD- Long Term Evolutions) radio base station, the Wimax or any other appropriate radio base station based on TDD is together
Operation.
According to the illustrative embodiments of TMA parts 100, TMA modems 110 are configured to control trap method and delayed
Timer, wherein TMA modems are configured to work as any switch command word matching in register 111 and have demodulated switching signal
Trap method is updated during switch command word and is reset and delays timer.
According to an illustrative embodiments, TMA modems 110 are configured to：When the switch command word in register 111 not
When matching has demodulated the switch command word of switching signal, by trap method controlling switch 134, and startup delays timing
Device.
According to still another exemplary embodiment, TMA modems 110 are configured to：By trap method controlling switch 134,
Or until delaying untill timer expires, wherein TMA modems 110 are configured to send to RBS modems 160 and warned
Accuse, or untill the switching signal of the switch command word of any switch command word in receiving including match registers 111,
Wherein TMA modems 110, which are configured to generation, is used for the control signal for controlling the switch 134 of TMA parts so as to synchronous base station
The RBS parts 150 of subsystem 1000 and TMA parts 100, and update trap method and reset and delay timer.
Furthermore, Fig. 1 illustrates base station of the TMA parts 100 and RBS parts 150 for synchronous base station sub-system 1000
The RBS parts 150 of system 1000, RBS parts 150 include：RBS modems 160, it, which is suitable for generation, includes switch command
The switching signal of word, and it is suitable for also being sent to switching signal the TMA modems 110 of TMA parts 100.
RBS parts 150 also include：Timing unit 181, it is arranged to control RBS modems 160 and controls RBS portions
Divide the power amplifier in amplifier unit 180 in 150.
In the example of RBS parts 150, timing unit 181 is arranged to activate the power amplification in amplifier unit 180
Device, while control RBS modems 160 to TMA modems 110 to send switching signal, so that controlling switch
134 make it that the DL leakage signals of antenna 120 are connected by switch 134 with loading resistor 136.In this way, in circulator 133
In be leaked to RX path 132 from transmitting path 131 any signal power be directed towards loading resistor 136, thus protect LNA
135。
In the another example of RBS parts 150, timing unit 181 is arranged to deactivate the power in amplifier unit 180
Amplifier, while control RBS modems 160 to TMA modems 110 to send switching signal, so as to control
Switch 134 make it that antenna 120 is connected by switch 134 with LNA 135.
As exemplified in Fig. 1, RBS parts 150 include processor 162, and processor 162 is suitable for towards TMA modulatedemodulates
Device 110 is adjusted to offset switching signal time delay before sending switching signal, to compensate from the power in amplifier unit 180
Amplifier to the propagation delay in the transmission of the output port of TMA parts 100 and switching signal from RBS modems 160 to
The time difference between propagation delay in the transmission of TMA modems 110.
Fig. 4 is that illustration is used for synchronization RBS parts and the flow chart of the example methodology of TMA parts in base station sub-system.Base
Subsystem of standing is suitable for use in the communication system using TDD.
Fig. 4 illustrates example methodology, and it includes：410 switching signals are generated in the RBS modems of RBS parts, and
Switching signal is sent to the TMA modems of TMA parts, wherein the switching signal includes switch command word.
This method also includes：430 switching signals are received in the TMA modems of TMA parts and 440 switches are demodulated
Signal.In addition, this method includes：Compare 450 to have demodulated the switch command word of switching signal and be stored in the register of TMA parts
In switch command word.If between any switch command word in a register and the switch command word for having demodulated switching signal
It was found that 460 matchings, then this method includes：Generation 480 is used for the control for controlling the switch of TMA parts in TMA modems
Signal is so as to the RBS parts and TMA parts of synchronous base station sub-system.
According to an illustrative embodiments, timing unit controls the work(in amplifier unit in RBS modems and RBS parts
Rate amplifier.
In one example, the power amplifier in amplifier unit is activated by timing unit, and wherein RBS modulatedemodulates
Device is adjusted to be controlled simultaneously from timing unit to send switching signal to TMA modems, so that controlling switch causes switch by day
Line is connected with loading resistor.Possibility leakage in from circulator to RX path is gone to loading resistor by this.Use this side
Formula, protects LNA.
In another example, the power amplifier in amplifier unit is deactivated by timing unit, and wherein RBS is modulated
Demodulator is controlled to send switching signal to TMA modems from timing unit simultaneously, so that controlling switch make it that switch will
Antenna is connected with LNA.
According to illustrative embodiments, this method also includes：Before 420 switching signals are sent towards TMA parts, in RBS modulation
Switching signal is postponed into 415 time migrations in demodulator, to compensate from the amplifier in amplifier unit to TMA parts
Output port transmission in propagation delay and switching signal from RBS modems to the transmission of TMA modems in
Propagation delay between time difference.
According to still another exemplary embodiment, this method also includes：TMA modems control 490 trap methods and delayed
Timer, wherein being updated when any switch command word matching in register 111 has demodulated the switch command word of switching signal
Trap method and reset delay timer.
In one example, the switch command word of switching signal has been demodulated when the switch command word in register is all mismatched
When, TMA modems are by trap method controlling switch, and startup delays timer.
This is in Fig. 4 by being carried out as follows illustration：Check whether 460 find to match in a register, and if it is not, then
TMA modems, which enter, delays pattern 470.Pattern is delayed below with reference to Figure 10 more detailed descriptions.
According to an embodiment, TMA is by trap method controlling switch, or until delaying untill timer expires, its
Middle TMA modems send to RBS modems and alerted, or are posted until TMA modems are received including matching
In storage untill the switching signal of the switch command word of any switch command word, wherein TMA modems are generated for controlling
The control signal of the switch of TMA parts updates supervision timing so as to the RBS parts and TMA parts of synchronous base station sub-system
Device and reset delay timer.
Fig. 5 is that illustration is used for the flow of synchronization of radio base station portion and the example methodology of TMA parts in TMA parts
Figure.
As indicated, this method includes：510 switching signals are received from the RBS modems in RBS parts, and demodulate 520
Switching signal, wherein the switching signal includes switch command word.
In addition, this method includes：Compare 530 and demodulated the switch command word of switching signal with being stored in posting for TMA parts
Switch command word in storage.If in a register any switch command word and demodulated switching signal switch command word it
Between find 540 match, then this method includes：Generation 560 is used for the control for controlling the switch of TMA parts in TMA modems
Signal processed is so as to the RBS parts and TMA parts of synchronous base station sub-system.
This method also includes：TMA modems control 570 trap methods and delay timer, wherein working as register
In the matching of any switch command word update trap method and reset when having demodulated the switch command word of switching signal and delay timing
Device.
If not finding matching in 540, i.e. when the switch command word in register is all mismatched in demodulated signal
During switch command word, TMA modems are by trap method controlling switch, and startup delays timer.
This is entered by TMA modems in Figure 5 delays the progress illustration of pattern 550.
According to an embodiment, by trap method controlling switch, or until delaying untill timer expires, wherein
TMA modems send to RBS modems and alerted, or any switch life in receiving including match registers
Untill the switching signal of switch command word for making word, wherein TMA modems generate the control of the switch for controlling TMA parts
Signal processed so as to synchronous base station sub-system RBS part and TMA parts, and update trap method and reset delay timing
Device.
Fig. 6 is that illustration is used for the example methodology of synchronization RBS parts and TMA parts in the RBS parts of base station sub-system
Flow chart.
As indicated, this method includes：Generation 610 includes opening for switch command word in the RBS modems of RBS parts
OFF signal, and switching signal is then sent into the 620 TMA modems for arriving TMA parts.
In one example, timing unit controls the power amplification in amplifier unit in RBS modems and RBS parts
Device.
In one example, the power amplifier in amplifier unit is activated by timing unit, and wherein RBS modulation /demodulation
Device is controlled to send switching signal to TMA modems from timing unit simultaneously, so that controlling switch causes switch by antenna
It is connected with loading resistor.
In another example, the power amplifier in amplifier unit is deactivated by timing unit, and wherein RBS is modulated
Demodulator is controlled to send switching signal to TMA modems from timing unit simultaneously, so that controlling switch make it that switch will
Antenna is connected with LNA.
Fig. 6 also illustrates illustrative embodiments, and wherein this method also includes：Towards TMA part send 620 switching signals it
Before, switching signal is postponed into 615 time migrations in RBS modems, to put described in compensating from amplifier unit
Big device is to the propagation delay in the transmission of the output port of TMA parts and switching signal from RBS modems to TMA modulatedemodulates
Adjust the time difference between the propagation delay in the transmission of device.
The example of RBS modems is briefly described referring now to Fig. 7, it is that illustration illustrates RBS modems
Block diagram.Fig. 7 illustrates multiple components and/or unit.In order to simplify reason, all components and/or unit will not be described here.
Fig. 7 shows the RBS modems 160 including register 720, and register 720 includes command word.These orders
Word is used for controlling switch 134 (illustrating in Fig. 1) so that base station sub-system can be sent in the downlink, and in uplink
Received in road.One example of this register 720 is FPGA registers.
RBS modems also include CPRI (common public radio interface) unit 740.CPRI units 740 show herein
Example includes timing unit 181 (illustrating in Fig. 1).In Fig. 1 example block, timing unit 181 and RBS modulation /demodulation
Device 160 is illustrated as separated unit.In Fig. 7 example block, timing unit is integrated into CPRI units 740.
Fig. 7 illustrates the switch command that AU is sent to via CPRI units 740, and AU represents putting such as institute's illustration in Fig. 1
Big unit (AU) 180.Also being sent towards TMA modems includes the switching signal of switch command word.
Switch command from CPRI units 740 will trigger RBS modems 160 and send bag to TMA modems
Include the switching signal of switch command word.As described above, it be able to will be opened before switching signal is sent towards TMA modems
OFF signal delay one is offset, to compensate the transmission from the power amplifier in amplifier unit to the output port of TMA parts
In propagation delay and switching signal from RBS modems to the transmission of TMA modems in propagation delay
Time difference.For this purpose, delay buffer 730 is provided to RBS modems 160, delay buffer 730 correspondingly prolongs
Slow switching signal.Time migration can be by the message arrangement of layer 3.
As described in above also, can before the TMA modems in sending signal to TMA parts modulated signal.
For this purpose, modulator 750 is provided to RBS modems.Hereafter, can be via biasing T-network to TMA modems
Send switching signal.
As can be seen in the figure 7, CPU or processor 710 send RET message, will also use NCO1 numerically-controlled oscillators
By RET message modulations into pre-defined Frequency point.There is lower frequency compared to NCO2, NCO1, so that causing to compare makes
With NCO2 modulation switch signals, with lower frequency modulation(PFM) RET message.Therefore, RET message is unaffected.RET message is used
In the control of antenna tilt angle.
The reason for using another higher frequency is the switching signal for having high accuracy in TMA parts.The degree of accuracy should be
In the interval of millisecond.Used possible bandwidth includes the switching signal of switch command word in MHz range to transmit.
The example of TMA modems is briefly described referring now to Fig. 8, Fig. 8 is that illustration illustrates TMA modems
Block diagram.Fig. 8 illustrates multiple components and/or unit.In order to simplify reason, all components and/or unit will not be described here.
Fig. 8 shows the TMA modems 110 including register 820, and register 820 includes command word.This deposit
One example of device 820 is FPGA registers.Fig. 8 also illustrate be expressed as in the control figure 8 of register 820 S1, corresponding to Fig. 1
Exemplified in switch 134 switch.In fig. 8, register controlling switch, to be arranged to close for downlink, and for upper
Line link is arranged to out.Fig. 1 is seen, this corresponds to switch 134 and antenna 120 is coupled into loading resistor 134 so as to for descending
Link is pass.Equally, antenna 120 is coupled to LNA 135 corresponding to switch 134 in Fig. 1 for opening for up-link in Fig. 8.
Fig. 8, which also illustrates TMA modems 110, to be included being used to demodulate the switching signal received from RBS modems
Demodulator 830.After the demodulation, the switch command word that switching signal includes and the switch command word phase in register 820
Compare.If the switch command word as described earlier in register 820 is ordered with the switch included in switching signal
Make and matching found between word, then TMA modems are by controlling switch (S1 in Fig. 8), or for downlink to close or
Person is to open for up-link.
Fig. 8, which also illustrates TMA modems, includes the NCO2 840 as numerically-controlled oscillator.This NCO2 is configured
Into generation trap method.NCO2 comes from local VCXO (not shown) again, and VCXO is VCXO device.
Now, it will describe same for the demonstration of synchronization TMA parts and RBS parts when starting base station sub-system with reference to Fig. 9
Step process.
In order that TMA parts and RBS parts Timing Synchronization, in this example, need before TMA switch can act
Signaling between RBS parts and TMA parts.Acquiescence, including switch (134 in S1 and Fig. 1 in Fig. 8) and LNA 135
RX path in switch be arranged to close, it means that it is set for downlink transmission, to protect LNA 135.
Process starts from RBS trigger events 910.It means that RBS parts are wanted to start to transmit in the downlink.
First, it checks 915 whether attached TMA parts.If not attaching TMA parts, process terminates 920.This be because
For：If not attaching TMA parts, it certainly can not be with RBS Partial synchronizations.
If having attached TMA parts, 930 time migrations are configured.This is performed as already mentioned above.
Then, the power amplifier connected in the amplifier unit of RBS parts, and inspection 935 is in the descending chain of RBS parts
Whether path switching signal works.If it does not work, process terminates 940.On the other hand, if descending chain in RBS parts
Path switching signal works, then checks whether 945 synchronizing channel between RBS modems and TMA modems is in
Get out state.RBS modems and TMA modems can be used to pass through shaking hands signaling and enter in synchronizing channel for this
OK.TMA parts and RBS parts are all provided with hardware monitor to detect the state of TMA parts and RBS parts respectively.When
The state for detecting TMA parts and RBS parts is that when being ready to, then synchronizing channel is in and gets out state.
If it is not at getting out state, process, which returns to the 935 downlink switching signal in RBS parts of inspection, is
No work.If it is in and gets out state, synchronization character can be transmitted periodically from the coordinator to TMA modems, and TMA is opened
TMA modems will be sent to open the switch in TMA parts by closing to enable to order.It should be noted that synchronization character is switch
Command word, synchronization character with the switch command word identical mode to be stored in TMA modems and RBS modems
In corresponding registers.
Two kinds of examples of the possible breakdown situation that may occur in which will now be described.First, the circulator 133 in Fig. 1 may lose
Spirit.When base station sub-system is transmitted in the downlink, transmitting path 131 is coupled to antenna by circulator 133.Optimally, exist
Then no power flows through in RX path 132.If the failure of circulator 131 causes downlink signal power to be reflected, make
Obtain all or part of power flow direction switch 134 and LNA 135 in RX path 132.Avoid damage to a kind of LNA possible mode
It is that the downlink power in RX path is routed to loading resistor 136, and the LNA 135 also in bypass TMA parts.
Further, VSWR (voltage standing wave ratio) or power detector can be configured as detection downlink leakage power and route it to negative
Carry resistor 136 and bypass LNA, to prevent that LNA saturations or destruction from preventing.
Another example of possible breakdown situation is：If the switch command word in switching signal mismatches TMA modulation /demodulation
In device if any switch command word of register.In this case, TMA modems, which enter, delays pattern.This also exists
Illustrated in Figure 10.
When TMA modems, which enter, delays pattern, it needs to provide accurate switching signal to control TMA parts
In switch.When TMA modems, which enter, delays pattern 1000, if delay timer 1070 it is also not actuated if, TMA
Modem, which starts, delays timer 1070, and generates switching signal based on trap method 1080.
In normal manipulation mode, trap method is arranged at the FPGA of TMA modems, with to from RBS modulatedemodulates
The duration of two continuous downlink switch commands of device transmission is adjusted to be counted.Trap method can have hundreds of MHz
Operating frequency, to increase the degree of accuracy.
In one example, at TMA modems PLL (phaselocked loop) is only locked into local VCXO (VCXOs
Device) and it is not locked to period downlink command signal.Because VCXO frequency is floated, so by different way to supervision timing
Device value is counted.VCXO is a part for TMA modems, and controls NCO1 and NCO2.
When lost downlink switch command as just described, TMA modems enter so-called resistance
Prolong pattern.
Pattern is being delayed, when receiving downlink switch command, the supervision that FPGA can be counted based on last time is determined
When device value continue to switch provide switching signal.However, because VCXO frequency is floated, the phase of the switching signal generated will
Slowly float, and the final threshold exceeded within the time of pre-defining needed for phase accuracy.Can the required standard based on VCXO
Exactness and this pre-defined time of proper calculation, also referred to as delay the time.During the time is delayed, another timing can be started
Device based on the time that delays calculated to be counted downwards.The switch of TMA parts will be off, and it corresponds to described above descending
Link is transmitted, and this causes bypass LNA after having been expired in the time that delays.
In another example, when there is downlink switch command, the PLL at TMA modems can be locked
To the switching signal generated, and then downlink switch command loss after enter delay pattern.The time of delaying takes
Certainly in VCXO frequency stability features.
If there is more than one RF branches in TMA parts, TMA modems switch to another RF branches 1060
（Still enlivened in the case of 1090 in this branch）, to detect the switch command sent from RBS modems.
If timer 1100, the TMA that expires is delayed to will be off, and LNA will be bypassed 1110, and will generation police
Accuse and warning is sent to RBS modems 1120.
Figure 10 is also illustrated：Receiving 1010 from RBS modems includes the switching signal of switch command word, and TMA
Whether the switch command word that modem inspection 1020 is received matches any switch command word in its register.If posted
The switch command word of matching is found that in storage, then stops 1030 and delays timer, and updates 1040 trap methods, and is generated
1050 control signals return to normal manipulation mode so as to controlling switch, and this has been described before.
Figure 11 illustrates the example of the example embodiment of the present invention using radio frame in the TDD-LTE with subframe 0 to 9
Show application.In this example, radio frame has two uplink sub-frames, and as defined in TDD-LTE.As institute
Show, TDD TMA RX circuits are strictly aligned with radio frame.The TMA TDD illustration that controls is opened and (connected) for S1, is RX afterwards
Open and close and (turn off) with S1 and RX passes.Note, example embodiment of the invention is not limited to the system based on TDD-LTE, and
It may be implemented in other systems based on TDD.
It should be noted that Fig. 1,3,7 and 8 be illustrated on logical meaning various functions unit in base station sub-system,
TMA parts, RBS parts, TMA modems and TMA modems.Any appropriate software and hardware actually can be used
Component/circuit etc. realizes these functions.Thus, present invention is generally not limited to shown base station sub-system, TMA parts, RBS portions
Point, the structure and functional unit of TMA modems and TMA modems.It therefore, it can retouch before many modes are realized
The example embodiment stated.For example, one embodiment of the present of invention includes the computer-readable medium for being stored thereon with instruction, these
Instruction can be performed so as to synchronous RBS parts and TMA parts by base station sub-system and/or RBS parts and/or TMA.Can be by calculating
System performs and stored the method for the present invention step illustrated in instruction perform claim claim on a computer-readable medium.
Although describing the present invention according to multiple embodiments, want, reading grinding for specification and drawings
After studying carefully, its alternative, modification, displacement and equivalents will become obvious.It is therefore intended that following appended claims are included
This alternative, modification, displacement and the equivalents for falling within the scope of the present invention and being defined by pending claims book.
Claims (18)
1. a kind of base station sub-system (1000) of the communication system of use TDD, it is used for the synchronous base station subsystem
Amplifier TMA parts are installed with the tower of the base station sub-system (1000) in the radio base station RBS parts (150) of system (1000)
(100), the RBS parts (150) include：
- RBS modems (160), it, which is suitable for generation, includes the switching signal of switch command word and is suitable for institute also
State the TMA modems (110) that switching signal is sent to the TMA parts (100)；
Wherein described TMA modems (110) are suitable for demodulating the switching signal and are suitable for that switching signal will have been demodulated
The switch command word compared with the switch command word in the register (111) for being stored in the TMA parts；And work as institute
State when having demodulated the switch command word of switching signal described in any switch command word matching in register (111),
The TMA modems (110) are configured to：The control signal of the switch (134) for controlling the TMA parts is generated, with
Just the RBS parts (150) of the synchronous base station sub-system (1000) and TMA parts (100).
2. base station sub-system (1000) as claimed in claim 1, wherein RBS parts (150) also include：Timing unit
(181), it is arranged to control the RBS modems (160) and controls amplifier unit in the RBS parts (150)
(180)。
3. base station sub-system (1000) as claimed in claim 2, wherein the timing unit (181) is arranged to：Activation is described
Power amplifier in amplifier unit (180), while controlling the RBS modems (160) to adjust to the TMA
Modulator-demodulator (110) send switching signal so that control it is described switch (134) cause it is described switch (134) by antenna (120) with
Resistor (136) is connected.
4. base station sub-system (1000) as claimed in claim 2, wherein the timing unit (181) is arranged to：Deactivate institute
The power amplifier in amplifier unit (180) is stated, while controlling the RBS modems (160) with to the TMA
Modem (110) sends switching signal, so as to control the switch (134) to cause the switch (134) by antenna (120)
It is connected with LNA (135).
5. the base station sub-system as any one of claim 3-4, wherein the RBS modems (160) include：Place
Device (162) is managed, it is suitable for before the switching signal is sent towards the TMA modems (110) believing on the switch
Number time delay skew, to compensate from the power amplifier in the amplifier unit (180) to the TMA parts
(100) propagation delay and the switching signal in the transmission of output port are from the RBS modems (160) described in
The time difference between propagation delay in the transmission of TMA modems (110).
6. the base station sub-system as any one of claim 1-4, wherein the TMA modems (110) are configured to
Control trap method and delay timer, wherein the TMA modems (110) are configured to：When the register (111)
In any switch command word matching described update the supervision calmly when having demodulated the switch command word of switching signal
When device and reset described in delay timer.
7. base station sub-system as claimed in claim 6, wherein the TMA modems (110) are configured to：When the deposit
The switch command word in device (111) all mismatch it is described when having demodulated the switch command word of switching signal, by institute
The trap method control switch (134) is stated, and timer is delayed described in startup.
8. base station sub-system as claimed in claim 7, wherein the TMA modems (110) are configured to by the prison
Superintend and direct described in Timer Controlling switch (134), or delayed until described untill timer expires, wherein the TMA modulation /demodulation
Device (110) is configured to send to the RBS modems (160) and alerted, or until receiving including matching the deposit
Untill the switching signal of the switch command word of any switch command word in device (111), wherein the TMA modems
(110) it is configured to：The control signal of the switch (134) for controlling the TMA parts is generated so as to the synchronous base station
The RBS parts (150) of subsystem (1000) and TMA parts (100), and update the trap method and reset
It is described to delay timer.
9. a kind of tower of base station sub-system (1000) installs amplifier TMA parts (100), for the synchronous base station sub-system
(1000) TMA parts (100) and radio base station RBS parts (150), the TMA parts (100) include：TMA is modulated
Demodulator (110), it is suitable for receiving switching signal from the RBS modems (160) in RBS parts (150), described
Switching signal includes switch command word, and the TMA modems (110) are suitable for demodulating the switching signal and compared
The switch command word for having demodulated switching signal and the switch being stored in the register (111) of the TMA parts are ordered
Make word；And demodulate the described of switching signal described in being matched when any switch command word in the register (111)
During switch command word, the TMA modems (110) are configured to generation control signal to control the TMA parts (100)
Switch (134) so as to the RBS parts (150) and TMA parts (100) of the synchronous base station sub-system (1000).
10. TMA parts (100) as claimed in claim 9, wherein the TMA modems (110) are configured to：Control prison
Superintend and direct timer and delay timer, wherein the TMA modems (110) are configured to work as appointing in the register (111)
The trap method is updated when having demodulated the switch command word of switching signal described in what switch command word matching simultaneously
Timer is delayed described in resetting.
11. TMA parts (100) as claimed in claim 10, wherein the TMA modems (110) are configured to：When described
The switch command word in register (111) all mismatches described when having demodulated the switch command word of switching signal, borrows
The trap method control switch (134) is helped, and timer is delayed described in startup.
12. TMA parts (100) as claimed in claim 11, wherein the TMA modems (110) are configured to：By institute
State the trap method control switch (134), or delayed until described untill timer expires, wherein the TMA is modulated
Demodulator (110) is configured to send to the RBS modems (160) and alerted, or described including matching until receiving
Untill the switching signal of the switch command word of any switch command word in register (111), wherein the TMA modulatedemodulates
Device (110) is adjusted to be configured to：The control signal of the switch (134) for controlling the TMA parts is generated so as to synchronous described
The RBS parts (150) of base station sub-system (1000) and TMA parts (100), and update the trap method simultaneously
Timer is delayed described in resetting.
13. a kind of radio base station RBS parts (150) of base station sub-system (1000), it is used for the synchronous base station sub-system
(1000) tower installs amplifier TMA parts (100) and radio base station RBS parts (150), the RBS parts (150)
Including：RBS modems (160), it, which is suitable for generation, includes the switching signal of switch command word, and is suitable for institute also
The TMA modems (110) that switching signal is sent to the TMA parts (100) are stated, the RBS parts (150) also include：
Timing unit (181), it is arranged to control the RBS modems (160) and controls putting in the RBS parts (150)
Power amplifier in big device unit (180), wherein the timing unit (181) is arranged to：Activate the amplifier unit
(180) power amplifier in, while controlling the RBS modems (160) with to the TMA modulation /demodulation
Device (110) sends the switching signal, so as to control the switch (134) to cause the switch (134) by antenna (120) and electricity
Hinder device (136) connection.
14. RBS parts (150) as claimed in claim 13, wherein the timing unit (181) is arranged to：Deactivate described
The power amplifier in amplifier unit (180), while controlling the RBS modems (160) with to described
TMA modems (110) send the switching signal, so as to control the switch (134) to cause the switch (134) by institute
Antenna (120) is stated to be connected with low-noise amplifier LNA (135).
15. the RBS parts (150) as any one of claim 13-14, wherein the RBS modems (160) are wrapped
Include：Processor (162), it is suitable for opening described before the switching signal is sent towards the TMA modems (110)
OFF signal time delay offsets, to compensate from the power amplifier in the amplifier unit (180) to the TMA portions
Propagation delay in the transmission of the output port of point (100) is with the switching signal from the RBS modems (160) to institute
State the time difference between the propagation delay in the transmission of TMA modems (110).
16. a kind of be used for the synchronous base station sub-system in the base station sub-system using the communication system of TDD
The method that amplifier TMA parts are installed in radio base station RBS parts with the tower of the base station sub-system, methods described includes：
- (410) switching signal is generated in the RBS modems of the RBS parts, the switching signal includes switch command
Word, and the switching signal is sent into the TMA modems that (420) arrive the TMA parts；
- (430) described switching signal is received in the TMA modems of the TMA parts；
- demodulation (440) described switching signal；And
- compare that (450) are described have been demodulated the switch command word of switching signal and be stored in the register of the TMA parts
Switch command word；And
- when the switch command word that switching signal has been demodulated described in any switch command word matching in the register
When, (480) are generated in the TMA modems is used for the control signal for controlling the switch of the TMA parts so as to synchronization
RBS parts and the TMA parts of the base station sub-system.
17. a kind of tower in base station sub-system installs the method in amplifier TMA parts, it is used for the synchronous base station sub-system
TMA parts and radio base station RBS parts, methods described includes：
- (510) switching signal is received from the RBS modems in the RBS parts, the switching signal includes switch command
Word；
- demodulation (520) described switching signal；
- compare that (530) are described have been demodulated the switch command word of switching signal and be stored in the register of the TMA parts
Switch command word；And
- when the switch command word that switching signal has been demodulated described in any switch command word matching in the register
When, (560) are generated in the TMA modems is used for the control signal for controlling the switch of the TMA parts so as to synchronization
RBS parts and the TMA parts of the base station sub-system.
18. a kind of method in the radio base station RBS parts of base station sub-system, it is used for the synchronous base station sub-system
TMA parts and the RBS parts, methods described include：
(610) are generated in-RBS the modems in the RBS parts includes the switching signal of switch command word；And
- (620) described switching signal is sent to the TMA modems of the TMA parts,
The timing unit of wherein described RBS parts controls the RBS modems, and controls to amplify in the RBS parts
Power amplifier in device unit,
The power amplifier in wherein described amplifier unit is activated by the timing unit, and wherein described RBS is adjusted
Modulator-demodulator is controlled to send (620) described switching signal to the TMA modems from the timing unit simultaneously, so that
The control switch make it that antenna is connected by the switch with resistor.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2010/002024 WO2012079187A1 (en) | 2010-12-13 | 2010-12-13 | A base station subsystem, a rbs part and a tma part and methods thereof for synchronizing the rbs part and the tma part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103430619A CN103430619A (en) | 2013-12-04 |
| CN103430619B true CN103430619B (en) | 2017-07-18 |
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| CN201080070652.2A Expired - Fee Related CN103430619B (en) | 2010-12-13 | 2010-12-13 | Base station sub-system, RBS parts and TMA parts and its method for synchronous RBS parts and TMA parts |
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|---|---|
| US (1) | US9215024B2 (en) |
| EP (1) | EP2653007A4 (en) |
| CN (1) | CN103430619B (en) |
| WO (1) | WO2012079187A1 (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11251608B2 (en) | 2010-07-13 | 2022-02-15 | Raycap S.A. | Overvoltage protection system for wireless communication systems |
| US9759880B2 (en) | 2013-09-17 | 2017-09-12 | Commscope Technologies Llc | Capacitive-loaded jumper cables, shunt capacitance units and related methods for enhanced power delivery to remote radio heads |
| US10712515B2 (en) | 2013-09-17 | 2020-07-14 | Commscope Technologies Llc | Capacitive-loaded jumper cables, shunt capacitance units and related methods for enhanced power delivery to remote radio heads |
| WO2015085585A1 (en) * | 2013-12-13 | 2015-06-18 | Telefonaktiebolaget L M Ericsson (Publ) | Tower mounted amplifier and filter thereof |
| US11333695B2 (en) | 2014-02-17 | 2022-05-17 | Commscope Technologies Llc | Methods and equipment for reducing power loss in cellular systems |
| US10281939B2 (en) | 2014-02-17 | 2019-05-07 | Commscope Technologies Llc | Methods and equipment for reducing power loss in cellular systems |
| US10830803B2 (en) | 2014-02-17 | 2020-11-10 | Commscope Technologies Llc | Methods and equipment for reducing power loss in cellular systems |
| US9448576B2 (en) | 2014-02-17 | 2016-09-20 | Commscope Technologies Llc | Programmable power supplies for cellular base stations and related methods of reducing power loss in cellular systems |
| US10802237B2 (en) | 2015-11-03 | 2020-10-13 | Raycap S.A. | Fiber optic cable management system |
| US9971119B2 (en) | 2015-11-03 | 2018-05-15 | Raycap Intellectual Property Ltd. | Modular fiber optic cable splitter |
| CN105376789B (en) * | 2015-11-24 | 2018-03-27 | 广东欧珀移动通信有限公司 | Network communicating function abnormal processing method, modem and mobile terminal |
| CN105634640B (en) * | 2015-12-31 | 2018-04-17 | 武汉凡谷电子技术股份有限公司 | The implementation method and device of TDD synchro switches |
| US10405091B2 (en) * | 2017-01-04 | 2019-09-03 | Wavtech, LLC | Input of time delay values to signal processor |
| US10812664B2 (en) | 2017-01-20 | 2020-10-20 | Raycap S.A. | Power transmission system for wireless communication systems |
| CN109412537B (en) * | 2017-08-15 | 2022-10-14 | 诺基亚通信公司 | Low noise amplifier protection |
| DE102018213029A1 (en) * | 2018-08-03 | 2020-02-06 | Audi Ag | Transmitting / receiving system for radio signals |
| US10971928B2 (en) | 2018-08-28 | 2021-04-06 | Raycap Ip Assets Ltd | Integrated overvoltage protection and monitoring system |
| CN113796003A (en) | 2019-05-01 | 2021-12-14 | 康普技术有限责任公司 | Method and apparatus for reducing power loss in a cellular system |
| US11677164B2 (en) | 2019-09-25 | 2023-06-13 | Raycap Ip Assets Ltd | Hybrid antenna distribution unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1794336A (en) * | 2004-12-23 | 2006-06-28 | 三星电子株式会社 | Display device and driving apparatus thereof |
| US20090316609A1 (en) * | 2008-06-24 | 2009-12-24 | Lgc Wireless, Inc. | System and method for synchronized time-division duplex signal switching |
| US7656957B2 (en) * | 2005-06-24 | 2010-02-02 | Cisco Technology, Inc. | Multiplexing system for time division duplex communication systems |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6873643B2 (en) * | 1990-11-16 | 2005-03-29 | Interdigital Technology Corporation | Spread spectrum adaptive power control communications system and method |
| WO1998047246A1 (en) * | 1997-04-17 | 1998-10-22 | Ntt Mobile Communications Network Inc. | Base station apparatus of mobile communication system |
| SE518204C2 (en) * | 1999-12-30 | 2002-09-10 | Ericsson Telefon Ab L M | Measures to counter Rayleigh fading in a cellular radio communications system |
| AU2001231269A1 (en) | 2000-02-03 | 2001-08-14 | Ericsson Inc. | System and method for wireless connection to base station external equipment |
| US7684779B2 (en) * | 2005-05-31 | 2010-03-23 | Broadcom Corporation | Wireless terminal baseband processor high speed turbo decoding module |
| US7532638B2 (en) * | 2005-06-01 | 2009-05-12 | Broadcom Corporation | Wireless terminal baseband processor high speed turbo decoding module supporting MAC header splitting |
| US7907614B2 (en) * | 2005-11-11 | 2011-03-15 | Broadcom Corporation | Fast block acknowledgment generation in a wireless environment |
| US7616940B2 (en) | 2006-05-10 | 2009-11-10 | Nortel Network Limited | Stand-alone low noise amplifier |
| GB2440192B (en) | 2006-07-17 | 2011-05-04 | Ubidyne Inc | Antenna array system |
| KR100856196B1 (en) * | 2007-01-03 | 2008-09-03 | 삼성전자주식회사 | Method and System for Controlling Remote in Optical Repeater Using TDD |
| US8606255B2 (en) * | 2008-01-17 | 2013-12-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Asynchronous communication over common public radio interface (CPRI) |
| US9059778B2 (en) * | 2011-01-07 | 2015-06-16 | Integrated Device Technology Inc. | Frequency domain compression in a base transceiver system |
-
2010
- 2010-12-13 CN CN201080070652.2A patent/CN103430619B/en not_active Expired - Fee Related
- 2010-12-13 WO PCT/CN2010/002024 patent/WO2012079187A1/en active Application Filing
- 2010-12-13 EP EP10860701.1A patent/EP2653007A4/en not_active Withdrawn
- 2010-12-13 US US13/882,253 patent/US9215024B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1794336A (en) * | 2004-12-23 | 2006-06-28 | 三星电子株式会社 | Display device and driving apparatus thereof |
| US7656957B2 (en) * | 2005-06-24 | 2010-02-02 | Cisco Technology, Inc. | Multiplexing system for time division duplex communication systems |
| US20090316609A1 (en) * | 2008-06-24 | 2009-12-24 | Lgc Wireless, Inc. | System and method for synchronized time-division duplex signal switching |
Also Published As
| Publication number | Publication date |
|---|---|
| US20130215804A1 (en) | 2013-08-22 |
| EP2653007A1 (en) | 2013-10-23 |
| WO2012079187A1 (en) | 2012-06-21 |
| EP2653007A4 (en) | 2016-01-20 |
| US9215024B2 (en) | 2015-12-15 |
| CN103430619A (en) | 2013-12-04 |
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